Rotary valve for internal-combustion engines



Nov'. 20 1923.

- Z. A. CARNES ROTARY VALVE FOR INTERNAL COMBUSIION ENGINES Filed Jana '7. 1922 Atto may.

Patented Nov.. 20, 1923.

ZEE A. CARNES, or vA'r'E-anoo, IOWA. i

" viaofiAim vALvE Een]INTEREALLCor/Iusron ENGINES;

Appucation medita-mary 7, 1222. serial No. 527,725.

To allwwmz'tmay concern: Y

Be 1t known that I, ZEN A. CARNES, a citizen of theUnited States of America, and a resident of Waterloo, Blackhawk County,`

Iowa, have invented certain new and useful Improvements in Rotary `Valves for lnternal-Combustion Engines, ofi'whichthe following is a specification.V

My invention 4relates to improvementsV in' rotary valves for internal combustion engines, and the object ofmy'improvements is to provide a v-alve-casing in communication with an engine combustion-chamber, said casing containing a closed' hollow rotatable cylindric valve having separated independent passages isolated from the interior of the valve and adapted for alternate communica- 'tions with said combustion chamber, and

having an independent rotor therein for directingly spraying a flowing cooling medium along and in contact with the linner walls of the valve for cooling the bearing surfaces) thereof. l

This objectl have accomplished Vby the means whichare hereinafter described andv claimed, and which areillustrated in the accompanyingdrawings, in which Fig. l is an elevationof an'internal combustion engine equipped withmy said improved valve-casing and valve, with parts' broken away. Fig. 2 is a view of the'same, taken partly in elevation and partly in longitudinal central section. Fig. 3 is a transverse section of said construction'with parts broken away, and Fig. l isa transverse section onanother vplane through said valve-casing and valve.

Similar numerals @of reference denote corresponding parts `throughout the several views. Y

The open endY cylindrical valve-casing 1 has a water-jacket andis mounted on or a n. nexed to the combustion-chamber 13 .of an internal combustion enginel'l, it beingl under- A closed end hollow cylindric rotatable valve 3 is mounted within and to fit the interior cylindrical hollow of said valve-casing. VThe numeral 2 denotes a pipe. traversing the walls of said valve-casing being also in communication with avsupplyrof` a flowing cooling medium, such as cool water,.andhaving` its other end arranged for occasional' communication with an inlet'port or-ports in i one end ofthe valve 5.V 'In the opposite end of the cylindricwallof said valve maybe y provided one or more openings 8 for, occasional communication with an opening into the valve-casing water-jacket, an outlet pipe 16 beingin communication with therlatter. By this means, the circulation-lofl cooling wateror other liquid maybe created longitudinallythrough the hollow of said valve. I havelprovided within' the valve a rotor or vaned body 76 whose lvanes extend into the path of movement of a stream of liquid entering the valve from `the pipe Vv2, Vthe stream independently rotating said rotor,

andthe'vanes of the rotor receiving` thefliq-VV uid and'changing the :direction o "the lat! walls of the valve to said `ports 8j.' The liq-v uid thus is given a whirling movement and more e'ectively cools saidcylindrical wall Vand its bearingVY surface more evenly spread throughout to reinforce .the ,coolingactionxof the liquid inthe water-jacket. .1 y @n a ,projectingv end ofV the-valve 3 is fixed a sprocket-wheel l carrying a sprocket-chain 5 and said chain and sprocket-wheel maybe carried and actuated by another sprocket-f wheel not shown, driven by the engine or other means, j l The valve 3 is traversed by two independent Aand separated cross-pipes 10 and 11,

-whose ends yare sealed inthe cylindric wall of the valve to isolate them `from the hollow ofthe valve and said pipes cross each other Y at right angles obliquely longitudinally in such a manner thateach pipe has one end opening vthrough the veylindric wall of the valve in the same transverse plane as theV outer opening' of thepipe 12 Vfor alternate occasional communicationtherewith assaid valve rotates; Longitudinally alined spaced inletand exhaust ports 9 and 15 are provided in the' walls of said valve-casing for occasional communications respectively with Y the other ends ofthe valve-pipes 10 and 11j` as the valve rotates. It will be seen that this f construction of the said coactingstructures permit the pipe 12 to' be used-alternately as; j

an inlet and an Yexhaust pipefor'theicom Y y bustion chamber ofthe engine.l p It is to be understood` that modifications Y in the illustrative structures herein are nevertheless within the :inciple of this invention and the scope of its protection.

Having described my invention, what l Yclaim as new and desire to secure by Letters `l'atent, is VI l. The combination with the combustionV chamber or an internal combustion engine7 of a valve-casing having .a wa-terfjacket, said casing having longitudinally spaced inlet andiexliaust ports, and having in its opposite side a single port communicating with said ,combustion chamber5 a hollow closed rotatable cylindric valve-body mounted and fitting within said valve-casing, said Vvalvebody and said valve-casing having inlet and outlet Qorts at opposite ends thereof for efecting occasional registering communica-V lion between i the valvecasing water-j aclret and thel hollowof tlievvalve-l'iody, independent conduits crossing the hollow oi the ythe valve-body and valve-casing in a current circulating through the hollows of both said structures.

2. ln combination, a valve-casing, a hol-- low closed cyliiidric valve rotatably mounted tlierein said valve havinglan inlet-port at ently,rotatable/,radial varies Amounted in the f valve adjacent said' inlet-port to receive liquid therefrom-and deflect it along the 'inner cylindric wall of the valve toward the discharge-port, and vindependent conduits traversing `said valve unconimunicatingly for occasional communications with an engine-port.

3. The combination with the'combustionchamber of an internal combustion engine, oi a valve-casing having a commoninletand exhaust-passage in communication with said combustionfchainbei and also havingspaced inletand exhaust-ports, a closed hollow rotary valve iitting said valveecasing hav.-V ing uncomniunicating passages adaptedito el'ect alternate communications when the valve is rotated between said first-*mentioned passage andv said inlet-and ei iliaiistports respectively only, and a vaiied iotorindependentlyirotatable.within the hollow of said valve tobe rotated by andcause an initial spreading of a flowing cooling medium under head introduced rwithinfthe valve overl the inner wall thereof to cool the bearings ofitlie Valve when the valve is in rotation- Y Signed -at Waterloo, Iowa, this 12tlil da ofDec., 1921. Y Y

,ZEN A. cannes. 

